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Full text of "The Cambridge Natural History"

HORSE-SHOE BATS                                527

none ; occasionally there are two. It lias no claw. The ear lias
its two sides separate from, their point of origin upon the head.
The group is of Old-World distribution.
Fam. 1. Rhinolophidae.—The Bats of this family possess the
leafy outgrowths around the nostrils. The ears are large, but
have no tragus. The index finger has no phalanx at all. The
premaxillary bones are quite rudimentary, and are suspended from
the nasal cartilages. In addition to the pectoral mammae they
have two teat-like processes situated abdominally. The tail is
long, and extends to the end of the interfenioral membrane,
The genus HhinolopJws has a large nose leaf, and an anti-
tragus to the ear. The first toe has two joints, the remaining toes
have three joints each. The dentition is I -|- C -J- Pm -| M -|-. There
are nearly thirty species of the genus, which are restricted to the
Old World. Two species occur in this country, viz. JS. ferrum
equinumt the Great Horse-shoe Bat, and the Lesser Horse-shoe Bat,
JK, li'ipposiderus. The name is of course derived from the shape
of the nose leaf.
The genus S-ipposiderus and some allied forms are placed
away frora HJiinolopli'iis and its immediate allies in a sub-family
Hipposiderinae. The type genus Hipposiderus, or, as it ought
apparently to be called, PhyllorJvina, is Old World in range, like
all the other members of the family.
The nose leaf is complicated, and there are only two phalanges
in all the toes; there is no antitragus to the ear. A curious
feature in the osteology of the genus, and indeed of the sub-family,
is the fact that the ileo-pectineal process is connected with the
ilium by a bony bridge; this- arrangement is unique among
mammals.
The genus ^Amtltops, only known from the Solomon. Islands,
and represented there by but a single species (vL ornat'us), has
an extraordinarily complicated nose leaf. The tail, like that of
the Oriental Goclops, likewise represented by a single species
{C.-frithw), is rudimentary.
"•yriaenops, Ethiopian  and  Malagasy, has,, like  the Australian
»JSJiinongeteris, u well-developed tail.     Fmtwnops Ijas also a highly-
complicated nose leaf.
Faiii. 2.  Nycteridae.—This family is "to be distinguished from
"' the jfehinolophidae by the fact that  the ear has a small tragus,
and by the small and cartilaginous premaxillae.     In addition  to